77-08-7

Basic information

• Product Name: 5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE
• Synonyms: LABOTEST-BB LT00160134;5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBIINDAN;5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDAN;5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE;5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYLBIS-1,1'-SPIROHYDRINDENE;5,6,5'6'-TETRAHYDROXY-3,3,3,'3'-TETRAMETHYL-[1,1']-SPIROBIINDANE;3,3,3',3'-TETRAMETHYL-1,1-SPIROBI(INDAN)-5,5',6,6'-TETROL;3,3,3',3'-TETRAMETHYL-1,1'-SPIROBIINDAN-5,5',6,6'-TETROL
• CAS NO: 77-08-7
• Molecular Formula: C₂₁H₂₄O₄
• Molecular Weight: 340.41
• EINECS: 201-003-1
• Product Categories: Alcohols;Monomers;Polymer Science
• Mol File: 77-08-7.mol
• Article Data: 4

Chemical Properties

• Melting Point: 300 °C
• Boiling Point: 561.2 °C at 760 mmHg
• Flash Point: 260.8 °C
• Appearance: /
• Density: 1.37 g/cm³
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature
• Solubility: Slightly soluble in methanol.
• PKA: 9.81±0.60(Predicted)
• BRN: 2226231
• CAS DataBase Reference: 5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE(CAS DataBase Reference)
• NIST Chemistry Reference: 5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE(77-08-7)
• EPA Substance Registry System: 5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE(77-08-7)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39-36
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 77-08-7(Hazardous Substances Data)

Usage

Uses

5,5',6,6'-Tetrahydroxy-3,3,3',3'- tetramethyl-1,1'-spirobisindane is used in the preparation of 4,7,4',7'-tetrabromo-3,3,3',3'-tetramethyl-2,3,2',3'-tetrahydro-[1,1']spirobiindene-5,6,5',6'-tetraol by bromination using bromine.

Upstream product

• 141-79-7 4-methyl-pent-3-en-2-one 
• 120-80-9 benzene-1,2-diol 
• 504-20-1 phorone 
• 67-64-1 acetone 
• 64-19-7 acetic acid 

Downstream Products

• 2138-43-4 4-isopropylcatechol 
• 120-80-9 benzene-1,2-diol 

Relevant articles and documents

Tetramine monomer containing spiro structure, preparation method and application of tetramine monomer, and polyamide and preparation and application thereof

The invention provides a tetramine monomer containing a spiro structure and a preparation method and application thereof, and polyamide and preparation and application thereof, and belongs to the technical field of gas membrane separation. According to the invention, a spiro center in a microporous polymer (PIMs) is introduced into a tetramine monomer, so that the tetramine monomer containing an aliphatic group (methylene) and having a microporous structure can be obtained. The polyamide film prepared from the tetramine monomer has the characteristics of high gas selectivity, high permeability, good solubility, good selectivity and the like, also has excellent thermal properties, and can be used as a novel polyamide gas separation film.

A facile reprecipitation method for the preparation of polyimide hollow spheres with controllable morphologies and permeable shell

We present our preliminary work on the fabrication of polyimide hollow sphere by reprecipitation. Through fine-tuning the PAA concentration, many intriguing shapes, including deflated capsules, bowl-shaped and dimple-like hollow spheres can be obtained. Adding salt to the PAA solution helps the formation of PI hollow spheres with complete shells. The morphologies can be fixed through imidization, thus obtaining a controllable and reproducible method to prepare high-performance polyimide hollow spheres with various morphologies.